| 5 | Savers | Retailers - other | Southend-On-Sea | SS0 7EW |
| 4 | Seacrest Fish And Chips | Restaurant/Cafe/Canteen | Southend-On-Sea | SS0 9TS |
| 4 | Seaforth Wine Stores | Retailers - other | Southend-On-Sea | SS0 7SB |
| 5 | Shagor Tandoori Restaurant | Restaurant/Cafe/Canteen | Southend-On-Sea | SS0 7LP |
| 2 | Shree Swami Food & Snacks | Mobile caterer | Southend-On-Sea | SS0 |
| 5 | Signature Dining | Hospitals/Childcare/Caring Premises | Southend-On-Sea | SS0 7PH |
| 5 | Silversea Residential Home | Hospitals/Childcare/Caring Premises | Southend-On-Sea | SS0 9XE |
| 5 | Six 2 Ten Stores | Retailers - other | Southend-On-Sea | SS0 9DH |
| 5 | Sky Blues Cafe Ltd | Restaurant/Cafe/Canteen | Southend-On-Sea | SS0 9ST |
| 5 | Slimming World | Other catering premises | Southend-On-Sea | SS0 9DT |
| 4 | Smash Peri Peri / Wingz Yard | Restaurant/Cafe/Canteen | Southend-On-Sea | SS0 7HT |
| 4 | Snaps Nursery | Hospitals/Childcare/Caring Premises | Southend-On-Sea | SS0 9JG |
| 5 | SoPa Thai Restaurant & Market | Restaurant/Cafe/Canteen | Southend-On-Sea | SS0 7JJ |
| 5 | Southend And Westcliff Community Centre | Hospitals/Childcare/Caring Premises | Southend-On-Sea | SS0 8EG |
| 5 | Southend Foodbank | Restaurant/Cafe/Canteen | Southend-On-Sea | SS0 0RJ |
| 5 | Southend Hebrew Congregation Hall | Other catering premises | Southend-On-Sea | SS0 8AD |
| 5 | Southend High School For Boys | School/college/university | Southend-On-Sea | SS0 0RG |
| 5 | Southview | Hospitals/Childcare/Caring Premises | Southend-On-Sea | SS0 9PW |
| 5 | Spaghetti Junction | Restaurant/Cafe/Canteen | Southend-On-Sea | SS0 9SU |
| 4 | Spar | Retailers - other | Southend-On-Sea | SS0 0DH |
| 5 | Sparkles Wine | Retailers - other | Southend-On-Sea | SS0 7HZ |
| 5 | St Bernards High School | School/college/university | Southend-On-Sea | SS0 7JS |
| 5 | St Helens Catholic Primary School | School/college/university | Southend-On-Sea | SS0 7AH |
| 5 | St Martins | Hospitals/Childcare/Caring Premises | Southend-On-Sea | SS0 8NQ |
| Exempt | St Saviours Church And Hall | Other catering premises | Southend-On-Sea | SS0 8LL |
| 5 | Steel Smoking | Other catering premises | Southend-On-Sea | SS0 |
| 5 | Sticky Fingers Cake Co | Manufacturers/packers | Southend-On-Sea | SS0 |
| 5 | Summer Lodge | Hospitals/Childcare/Caring Premises | Southend-On-Sea | SS0 8EN |
| 5 | SummerCare | Hospitals/Childcare/Caring Premises | Southend-On-Sea | SS0 7EL |
| 5 | Summercourt Children's Centre | Hospitals/Childcare/Caring Premises | Southend-On-Sea | SS0 7AU |
| 5 | Summerview Residential Home | Hospitals/Childcare/Caring Premises | Southend-On-Sea | SS0 8DU |
| 5 | Sunflowers | Hospitals/Childcare/Caring Premises | Southend-On-Sea | SS0 8DU |
| 5 | Sunshine Day Nursery | Hospitals/Childcare/Caring Premises | Southend-On-Sea | SS0 0AX |
| 5 | Surf | Restaurant/Cafe/Canteen | Southend-On-Sea | SS0 8JQ |
| 4 | Sweet Crush | Restaurant/Cafe/Canteen | Southend-On-Sea | SS0 7JJ |
| 4 | Sweets | Farmers/growers | Southend-On-Sea | SS0 |
| 5 | T And K Catering | Restaurant/Cafe/Canteen | Southend-On-Sea | SS0 8NE |
| Exempt | TJ's Beauty Lounge | Retailers - other | Southend-On-Sea | SS0 9PQ |
| 3 | Tara Thai Restaurant | Restaurant/Cafe/Canteen | Southend-On-Sea | SS0 7LP |
| 4 | Taste Of Madeira | Restaurant/Cafe/Canteen | Southend-On-Sea | SS0 7HU |
| 3 | Tasty Chicken | Takeaway/sandwich shop | Southend-On-Sea | SS0 7HU |
| 4 | Tesco | Retailers - supermarkets/hypermarkets | Southend-On-Sea | SS0 9PD |
| 5 | Tesco | Retailers - supermarkets/hypermarkets | Southend-On-Sea | SS0 7LJ |
| 5 | Tesco | Retailers - other | Southend-On-Sea | SS0 0JP |
| 5 | Tesco | Retailers - supermarkets/hypermarkets | Southend-On-Sea | SS0 0JP |
| 5 | Tesco Family Dining | Restaurant/Cafe/Canteen | Southend-On-Sea | SS0 0JP |
| 5 | Thames Estuary Yacht Club | Other catering premises | Southend-On-Sea | SS0 7ST |
| 3 | The Basilicia Restaurant | Restaurant/Cafe/Canteen | Southend-On-Sea | SS0 7EY |
| 5 | The Brew Co | Restaurant/Cafe/Canteen | Southend-On-Sea | SS0 |
| 5 | The Co-operative Group | Retailers - supermarkets/hypermarkets | Southend-On-Sea | SS0 9LG |